GRATUITY Gra*tu"i*ty, n.; pl. Gtratuities. Etym: [F. gratuité, or LL. gratuitas.]

1. Something given freely or without recompense; a free gift; a present. Swift.

2. Something voluntarily given in return for a favor or service, as a recompense or acknowledgment.

GRATULATE
Grat"u*late, v. t. [imp. & p. p. Grqatulated; p. pr. & vb. n.
Gratulating.] Etym: [L. gratulatus, p. p. of gratulari to
congratulate, fr. gratus pleasing, agreeable. See Grate, a.]

Defn: To salute with declaration of joy; to congratulate. [R.] Shak.

GRATULATE
Grat"u*late, a.

Defn: Worthy of gratulation. [Obs.]
There's more behind that is more gratulate. Shak.

GRATULATION
Grat"u*la"tion, n. Etym: [L. gratulatio.]

Defn: The act of gratulating or felicitating; congratulation.
I shall turn my wishes into gratulations. South.

GRATULATORY
Grat"u*la*to*ry, a. Etym: [L. gratulatorius.]